Gage-cock.



C. A. WALKER.

GAGE COCK.

APPLICATION FILED AUG. 211, 1913.

1,1 1 3,267. Patented Oct. 13, 1914.

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I Z 25 1 J3 2% z A/J Z 7 Z5 55 2 Z1 Z3 Z5 J9 Z I 1J2] J22 Inventor by IAttorneys 1n! NORRIS PEYERS c0vv PHOTO-Linda. WASHINGTON, D c,

CHARLES A. WALKER, 0F PITTSBURG, KANSAS.

GAGE-COCK To all whom it may concern:

Be it known that I, CHARLES A. WALKER, a citizen of the United States,residing at Pittsburg, in the county of Crawford and State of Kansas,have invented a new and usefulv Gage-Cock, of which the following is aspecification.

The present invention appertains generally to gage cocks, and aims toprovide a novel and improved device of that character.

One of the objects of the present invention is to provide a gage cockapplicable to boilers and the like, and embodying a valve adapted to beseated outwardly by the steam or water pressure.

Another object ofthe present invention is to provide a device of thenature indicated embodying a barrel adapted to be engaged through theboiler shell, and a valve stem passing'through the barrel and providedat its inner end with a valve seatable against the inner end'of thebarrel, to close the passage through the barrel, the outer end of-thestem being adapted to be manipulated or slid inwardly to open the.valve.

A still further object'of the present in vention is to provide novelmeans for actuating or manipulating the valve.

The present invention also has for its object to provide novel means forcleaning or clearing the interior of the valve of any scale orextraneous matter which may have accumulated or collected therein.

The invention also contemplates the provision of a simple-and efiicientappliance of the character specified, which shall possess I of thischaracter, and which shall be characterized by unique features to renderthe present device more desirable and effective.

With the'foregoing general objects outlined, and with other objects inview, which will be apparent as the nature of the invention is betterunderstood, the present invention resides in the combination andarrangement of parts and in the details of construction hereinafterdescribed and claimed, it being understood that changes in the preciseembodiment of the invention herein disclosed, can be made within thescope of what is claimed, without departing from the spirit of theinvention.

The invention has been illustrated in its preferred embodiment in theaccompanying drawing, wherein Figure 1 is a longitudinal central sectionSpecification of Letters Patent.

Application filed August 28, 1913.

Patented Oct. 13, 1914:. Serial No. 787,188.

of the device, parts being shown in full. Fig. 2 is a plan view. Fig. 3isa front end view of the device. Fig. 4 is an enlarged sectional detailtaken on the line A'B of Fig. 1.

In carrying out the invention, reference being had in detail to thedrawing,'there is provided a barrel or tubular body 1 which may be castor otherwise fashioned from suitable metal. The barrel 1 is providedwith a longitudinal circular bore 2, the forward or outer end of whichis contracted, as at 3. The bore 2 is enlarged adjoining the forward orouter end of the barrel 1, or adjoining the contracted portion 3, toprovide the chamber 4. The barrel 1 is provided with a depending nippleor nozzle 5 adjoining its forward end, the duct 6 of the nipplecommunicating'withthe chamber 1. The rear end of the barrel 1 isprovided with a tapered thread 7' for convenience in en-' gaging thesaid :end of the barrel through the shell of a boiler, or other object.The

inner end of the'barreli's also provided with an internal bevel, or is'c ounters un'k,=to provide a valve seat 8 at-the :inner or rearend ofthe bore. A stem 9 extends through the bore 2, the forward orouter-endof' the "stem being contracted," as at" '-10, and passingthrough the contracted portion-3 of the bore,

so as to protrude beyond the forward end of the barrel. The inner orrear end of the stem 9 is provided with a'headll forming a valve, theshoulder 12 of the head or valve being conical so as to seat within oragainst the seat 8 of the barrel, and the valve 11 be:

ing provided with the conical or pointed extension 13. The stem 9 hasthree of its sides flattened, as at 1 1, from the valve or head 11 to apoint short 'of'the reduced portion 10, the flattened portions 14forming passages leading from the chamber 4: to the rear or inner end ofthe barrel. The stem 9 may thus be said to have longitudinal passagesextending from the chamber to the valve, it being observed that the stem9 is disposed snugly within the bore of the barrel.

A packing or socket nut 15 is threaded over the forwarder outer end ofthe barrel, suitable packing 16 being disposed within the nut 15 to becompressed against the reduced or forward end portion 10 of the stem, topreclude leakage.

A hand wheel 17 is secured upon the forward or outer end of the stem, oron the reduced portion 10, the hub 18 of the handle being securedtightly upon the stem, and extending inwardly or rearwardly from the rimof the hand wheel. A am or set nut 19 is preferably threaded onto theextremity of the stem to bind the hub 18 of the hand wheel in position.A coiled wire spring, 20 encompasses the valve stem and is compressiblydisposed between the packing nut 15 and the inner end of the hub 18, soas to yieldingly force the stem and its valve outwardly, to seat thevalve. The hub 18 is provided with an exterior flange 21 adjoining itsinner end, for the purpose which will hereinafter appear.

A vertical or depending actuating, lever arranged at right angles to theaxis of the body or barrelis provided for opening the valve, the samebeing provided. with a straight fork 23at its upper? end and having ahandle 24 at its lower end, the fork 23 straddling the hub 18intermediate the rim of the hand wheel and the flange 21. A link 25connects the upper end of the lever 22 and the back of the barrel 1, theforward end of the link 25' being pivoted-betweenthe ends of the arms ofthe fork 23=by means of a bolt or pivot pin26, and the inner end of thelink being pivoted between a pair of upstanding ears 27 formed on theback of the barrel; The link 25 is pivoted between the cars 27 by meansof a bolt on pivot pin 28. A cross pin 29 is terminally riveted orsecured through the arms of the fork 23, and rests upon the hublsdirectly in advance of the annular or circumferential flange 21 formedon the'hubb The use of the present device-is accompanied by thefollowing advantages: lVhen the barrel 1 is'engaged to the shell of aboiler, it will be observed that thevalve will be disposed upon theinter-ion of the boiler. and in seating against the inner end of: thebarrel will normally prevent scale-collecting upon the interior of thebarrel;. The steam or water pressure will alsoassist in seating thevalve, and perchance, should the spring 20 be broken or removed,orshould the valve stem become broken, the steam or water pressure alonewould serve to seat the valve, in order to prevent the'escape of thesteam and water, which would result in a dead boiler. or lime shouldcreep into the barrel, due to leakage between the valve and; its seat,the scale or extraneous matter may be readily cleared from the barrel,by rotating the valve stem through the medium of the hand wheel 17,whereby the edges of the valve stem will shear or grind the scale fromthe interior walls of the bore 2. Then, by open ing' the valve, theforeign mater may be blown off. It isto be noted in. this connec tionthat the valve stem is approximately triangular in cross section, thatis, at its rear end portion, between the chamber 4 If under anycondition, the scale 1 and the valve, so as to provide longitudinalcutting. or shearing edges extending from the valve and'co'c peratingwith the walls of the bore leading from the valve seat for the purposejust described. The hand wheel 17 also permits the stem to be rotatedfor re grinding the valve and its seat, as will be apparent. The brokenscale may readily be discharged by first passing into the chamber 1 andthen through the nipple 5 with the water or steam. To manually open thevalve, the handle 24 of the lever 22 is grasped, and forced inwardly, ortoward the boiler, which will press the valve stem in.- warclly tounseat the valve, whereby the water or steam may flow through the bore 2to the chamber 4, and thence out the nipple or nozzle 5. When the leveris released, the valve will seat automatically, through the tension ofthe spring, 20, assisted by the steam or water pressure. As aboveintimated, the valve will seat of itself without the assistance of thespring, the spring expediting the seating of the valve." It will beobserved that when the hand wheel is turned, the pin 29 will continuallycoiiperate with the flange- 21, so that the Valve stem may be forcedinwardly irrespective of the particular pcsitionof the valve stem aboutits axis, the fork 23=also engaging the flange 21 andthe crotch of thefork receiving the hub 18.

Another feature of. the present invention, resides in the fact that a'shoulder isprovided by the reduced portion 10 of the stem, whichcoiperat'es With the shoulder formed by the portion 30f; the'borewhereby should the valve stem be broken in rear of the said shoulders,the outer portionv of; tie valve stem will beprevented from beingejected by the spning, or by the water or steam pressure.

From the foregoing, taken in connection with the drawing; the advantagesand capabilities of the present. invention; will be apparent, thepresent device being adapted primanilyfor use on locomotive orstationary boilers, but being applicable for other purposes as well.

Having: thus describedz the invention, wh at is claimed as new is:

In a device of the character described, a body having avalve seat andbore leading therefrom, a stem slidable throughthe bore, and having' avalve coiiperating with the said seat and longitudinal shear edgesextending from the valve and coiipemting with the Walls of the bore, ahand wheel having ahub secured on the outer end of the stem, the hubbeing extended inwardly and having an exterior flange at its inner end,a lever disposed at right angles-to the axis of the body and having astraight fork straddling the hub between the hand wheel proper and-theflange, a link havingone end pivoted between the ends of the fork arms,and having its other end connected to the body, a pin engaged throughthe arms of the In testimony that I claim the foregoing as my own, Ihave hereto aflixed my signature in the presence of two witnesses.

fork, the said hub being disposed snugly CHAS. A. WALKER. between thesaid pin and the crotch of the Witnesses:

fork, and a coiled Wire spring upon the said JOHN L. KIRKPATRICK,

stem between the body and hub. J B. FAYNE.

Copies of this patent may be obtained for five cents each, by lddrenln:the commissioner of Patentu,

, Wilmington, D. G.

